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reels 
Primary Reels
Fully modular cave diving primary reels in 300ft and 600ft. Comes apart for packing, mix-and-match parts, knurled winding knob. 3D printed in ASA with stainless steel hardware. Line not included.
From
$70
Built for the overhead.
Precision reels, spools, and markers. Designed by cave divers for cave divers.
The Gear
Purpose-built.
Every piece.
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spools 
Cave Diving Spools
Cave diving spools in 50', 100', and 150' sizes. Screw-free press-fit design. Printed from tough ASA. Drill winder included, line not.
From
$15
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markers 
Cave Diving Markers
Custom 3D-printed cave markers. We'll print cookies, line arrows, and REMs with your initials. Made from ASA so they last.
From
$3
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custom Cave Mapper System
Custom-built underwater cave mapping system with integrated sensors, data logging, and post-dive map generation. Each unit is built to your specifications.
Custom Order
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Process
How it's made.
Small batch, made to order. Four steps between the design file and your kit.
- Step / 01
Design
Every part starts in CAD. Modeled from real cave-diving problems and iterated against the line.
- Step / 02
Print
Printed in ASA, a tough thermoplastic that holds up to abrasion, UV, and long submersion.
- Step / 03
Finish
Each piece is cleaned, tumbled, and fitted with stainless hardware by hand.
- Step / 04
Test
Field tested underwater before it ever ships. Nothing leaves the shop untested.
Bespoke
Every cave is different.
So is your kit.
If you need something we don't list, we build it. A specific length, a one-off tool, a custom color.
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