Your path. Your spool. Your name.
Meet Ariadne — our custom 3D-printed finger spool, inspired by the legendary thread that guided the way. It is designed for cave divers, technical divers, and anyone who wants reliable, personalized gear that stands out. The design was developed by an experienced IANTD Advanced Technical Cave Instructor, GUE Cave 2, Cave DPV, CCR 2 / Cave CCR, who has spent thousands of hours in underwater caves.
Ariadne results from deep technical knowledge, real-world experience, and a passion for equipment that performs flawlessly when it matters most.
🎨 Custom Color Layers
Choose up to four color combinations to create a spool that reflects your style or team colors.
🔖 Nickname Personalization
Make it yours – we’ll print your nickname directly onto the body of the spool for easy identification and a unique personal touch.

🛠️ Engineered for Adventure
Each spool is printed with high-quality ABS filament, which is durable, water-resistant, and built to withstand real-world diving conditions.
📐 Familiar Form Factor
Ariadne’s design is inspired by the iconic Halcyon Defender Spool (30 m), which provides unmatched ergonomic comfort in the hand when deploying and retrieving the line.

🧵 Line Capacity
Holds up to 35 meters of #24 line or 50 meters of #18 line — ideal for most jump, safety, or DSMB deployment needs.

💼 Options & Pricing
USD 14.98 – One Finger Spool without line
USD 22.98 – One Finger Spool with line
🧶 Line Options Available:
- #24 line (Halcyon) – 30 meters, white only
- #18 line – 45 meters, available in white, pink, orange, or lime green
☑️ Both line types feature slightly negative buoyancy — ideal for an underwater environment.
🎨 Filament Color Options
You can choose from the following ABS filament colors for your custom spool:
White (40100), Silver (40102), Black (40101), Red (40200), Orange (40300), Tangerine Yellow (40402), Bambu Green (40500), Azure (40601), Purple (40700)
📎 See live color samples on the official Bambulab store:

🕒 Production & Order Terms
- ⏳ Lead time: Up to 2 weeks from design approval and payment
- 📦 Minimum order: 2 spools
Available for free pickup in Playa del Carmen and Puerto Aventuras areas. Worldwide delivery via DHL, FedEx, or Mexipost. Shipment costs will be calculated during the ordering process.
✅ Field-Tested Reliability
Ariadne Finger Spools have been tested for half a year in over 200 cave dives and more than 100 ocean dives, proving their reliability, durability, and ease of use in demanding environments.
Order your personalized Cave Ha Diving Finger Spools now for just USD 14.98 per one piece
💬 Got questions or special requests? Contact us — we’re happy to help.
What if I’m not yet a cave-certified scuba diver?
Ready to take your diving skills to the next level? Join us for an unforgettable training and adventure in the stunning Riviera Maya caves, home to nine of the world’s ten most extensive underwater caves. Whether you’re a recreational open-water diver or an experienced divemaster, our cave classes will take you on an incredible journey.
You’ll start with a technical fundamentals class, where you’ll learn new scuba configurations and essential skills. From there, you’ll progress to Cavern plus Intro to Cave training and continue with Full Cave or Technical Cave courses.
Cave training is one of the most challenging and rewarding scuba experiences, making cave divers part of an elite group of divers capable of navigating the most dangerous and awe-inspiring underwater environments.
Don’t miss out on this opportunity to join the elite group of cave divers and get your set of custom personalized Cave Ha Diving markers for free upon completing our Full Cave qualification.
If you do not have a partner for the course but are ready to join other teams/individuals, you can check
our planned Technical | Cave Courses are scheduled here
And what if I’m not yet a scuba diver at all?
If you have yet to obtain your scuba certification, you can jump on a journey by enrolling in our Open Water Diver courses. It will be your gateway to the captivating and surreal underwater environment. You will explore a whole new world that awaits your discovery.
Back