Cave Diving Spools
Short spool for jumps and tie-offs. Winder included.
For certified cave divers. Not a life-saving device. By purchasing, you accept our Terms of Service and Assumption of Risk.
Ships to US addresses. Based outside the US? Contact us for international shipping.
Estimated delivery: ~1 week to your door.
Choose a "Custom" variant to add your initials or markings. Want a different color? Contact us.
- Material
- PETG
- Weight
- ~21g (empty)
- Dimensions
- 6.0cm dia × 3.8cm wide
- Color
- Matte Black
Variant Comparison
| Variant | Price | Weight | Dimensions |
|---|---|---|---|
| Mini Spool (50ft) Standard | $15.00 | ~21g (empty) | 6.0cm dia × 3.8cm wide |
| Mini Spool (50ft) Custom | $23.00 | ~21g (empty) | 6.0cm dia × 3.8cm wide |
| Jump Spool (100ft) Standard | $18.00 | ~25g (empty) | 7.0cm dia × 4.1cm wide |
| Jump Spool (100ft) Custom | $26.00 | ~25g (empty) | 7.0cm dia × 4.1cm wide |
| Safety Spool (150ft) Standard | $20.00 | ~34g (empty) | 8.8cm dia × 4.6cm wide |
| Safety Spool (150ft) Custom | $28.00 | ~34g (empty) | 8.8cm dia × 4.6cm wide |
Spools are essential cave diving equipment, used for jumps, gaps, tie-offs, and lost-line procedures. Our spools are available in three sizes to cover every scenario you’ll encounter underwater: 50ft for quick jumps and tie-offs, 100ft as the standard workhorse, and 150ft for safety and emergency procedures.
Choose Your Size
50ft Mini Jump Spool - Ultra-compact spool (6.0cm diameter, 21g empty) suitable for short jumps or for minimizing equipment profile.
100ft Standard Jump Spool - The primary all-around spool. At 7.0cm in diameter and 25g empty, it holds sufficient line for most common jumps without being bulky.
150ft Safety Spool - A large-capacity spool (8.8cm diameter, 34g empty) carried for emergency scenarios, such as long-distance searches for a lost guideline.
Threadless Design
The spools feature a screw-free press-fit design; the halves snap together securely. For a permanent bond, apply a small amount of adhesive before assembly. Nothing to snag, break, or corrode.
Standard vs. Custom
Standard spools are produced in matte black.
Custom spools are printed with your choice of markings integrated directly into the part. Options include:
- Initials or team name
- Tactile bumps or notches for identification in low visibility
- Different colors for the center hub, subject to filament availability
Custom color choices do not add to the lead time. Custom initials, markings, or other design modifications may add additional lead time as the model must be modified. Select “Custom” when ordering and enter your personalization details before adding to cart.
Line is not included.
Included: Drill-Powered Winder
Includes a printed drill adapter for rapid line winding.
Frequently Asked Questions
What sizes do the spools come in?
We offer three sizes: 50ft, 100ft, and 150ft. Each is designed for specific uses: 50ft for jumps and tie-offs, 100ft for the standard jump spool, and 150ft for safety and longer traverses.
Can I get custom text or initials on a spool?
Yes. Select the Custom variant and enter your personalization at checkout. We can add initials, team names, or tactile notches for identification by feel in low-visibility conditions.
What material are the spools printed in?
All spools are printed in PETG for toughness and flexibility. PETG handles repeated impact better than ASA and is UV-stable, making it ideal for gear that gets bounced around in pockets.
Does the spool come with line?
No, spools are shipped empty. Each spool includes a drill-powered winder adapter for rapid line winding.
How does the press-fit design work?
The spool halves snap together without screws. No hardware to snag, break, or corrode. For a permanent bond, you can apply a small amount of adhesive before assembly.
Do you offer international shipping?
We primarily ship to US addresses. International buyers should contact us for a shipping quote. In-person pickup is available in Playa del Carmen, Mexico.