One block with endless uses that replaces a whole drawer of fittings. Reconfigure it from single to double to triple with the Conversion Kit, hanging or mounted on deck.
One block, 6+ uses: turning blocks, tackles, quick rigs
From one to three: reconfigure with the Conversion Kit
Fewer parts, more reliable: self-lubricating, no metal bearings
6+ applications from a single block: turning blocks, tackles, quick rigs. Fewer SKUs to stock, less weight aboard.
From one to three
Scale single to double to triple with the Conversion Kit, same body, same sheave, same quality. Buy once, expand when you need.
Fewer parts, more reliable
Two aluminium shells, one self-lubricating sheave, no metal bearings to seize or corrode at sea.
Modularity
From one to three. Same block.
Buy one, expand when you need it. Pair two or three identical Olli Flex into double and triple configurations with the same body, the same sheave and the same quality. Just add the Conversion Kit. You reconfigure the block, not the boat.
1 → 2 → 3 sheaves with the Conversion Kit
Mounts onboard with common hand tools
One block for every job, not a different block for every manoeuvre
One block, 6+ uses
Single, double or triple, hanging or on deck
SingleHanging from a stainless shackle.DoubleTwo blocks for 2:1 purchase.TripleThree sheaves for maximum purchase.Single on deckBolt a single block flat with the Conversion Kit.Double on deckBolt it flat with the Conversion Kit.Line-passingTurn a line around a stanchion or rail.OpenableRig onto a loaded line, no reeving.
Conversion Kit
One block plus one kit
Add one Conversion Kit to build any one of the configurations below: single or double on deck, double or triple hanging. On its own, the block just hangs from its stainless shackle.
With one Conversion Kit you can build
Single, on deck
1× Olli™ flex 1800 L Ø60 + 1× Conversion Kit L
One block bolted flat to the deck.
Double, on deck
2× Olli™ flex 1800 L Ø60 + 1× Conversion Kit L
Two blocks bolted flat to the deck.
Double, hanging
2× Olli™ flex 1800 L Ø60 + 1× Conversion Kit L
A 2:1 purchase hanging from the shackle.
Triple, hanging
3× Olli™ flex 1800 L Ø60 + 1× Conversion Kit L
A 3:1 purchase hanging from the shackle.
Without the kit — the block on its own
Single, hanging
1× Olli™ flex 1800 L Ø60
Works on its own, hanging from its stainless shackle.
Openable
1× Olli™ flex 1800 L Ø60
Open the cheek onto a line already under load.
One kit, one configuration at a time.The hardware builds any single configuration above. Set up the one you need now and keep the spare bolts, washers and shackle to switch to another configuration later, no extra kit required.
In every Conversion Kit L
Everything ships in one kit. Assembly needs a few common hand tools (listed below, not included). One kit per size and load class.
One Conversion Kit per size and load class. Blocks sold separately.
Overview
About Olli Flex
The Olli Flex 60 ST is a modular, multi-function block: one block that replaces a whole drawer of fittings. Reconfigure it from single to double to triple with the Conversion Kit, turning blocks, tackles, quick rigs, all from the same body.
Use it hanging from a stainless shackle, mounted flat on deck, or combined with identical blocks. A POM sheave and 8 mm shackle for larger 14 mm line with room to spare. Fewer parts than a conventional block, with a self-lubricating sheave and no metal bearings to seize or corrode at sea.
Key features
One block, 6+ uses: turning blocks, tackles and quick rigs, fewer SKUs to stow
Single to double to triple: reconfigure with the Conversion Kit (sold separately)
Deck or hanging: install on a stainless shackle or flat on deck
Fewer parts, more reliable: self-lubricating POM sheave, no metal bearings
Yes. A single Olli Flex covers turning blocks, tackles, quick rigs and temporary installs, 6+ applications. It replaces a drawer of single-purpose fittings.
How do I turn one block into a double or triple?
Add the matching Conversion Kit (sold separately, one per size and load class). It mounts on deck and joins identical Olli Flex blocks into double and triple configurations with a few common hand tools.
What's the difference between Standard and High Load (HL)?
HL versions use a 6061-T6 aluminium sheave instead of POM and a larger shackle, raising the working load on the same line diameter (e.g. 900 to 1,700 kg on Ø50).
Which size do I need?
Ø50 (M) takes up to 12 mm line, Ø60 (L) up to 14 mm. Match the size to your line and the working load to your application.
Does it need maintenance?
Very little. The self-lubricating sheave runs without metal bearings, so there is nothing to seize or corrode, just rinse with fresh water after use.
What makes it “openable”?
The interlocking aluminium bodies rotate against each other, so you can open the block onto a line already under load, handy, but the real advantage is reconfiguring one block into many setups.
