A handheld spearfishing device (Hawaiian Sling) designed with a patented pulley system. Spear not included.
The Kit includes everything needed for the DIY assembly of the Roller Hawaiian Sling. Upon placing your order you will be emailed the folder containing the file of the 3D printing files.
The 3D printing files that you will print out are as follows:
1. Roller Hawaiian Sling body
2. Rollers
3. Band Plugs
4. Shaft Cup
The remainder of supplies that will be shipped to you are as follows:
5. Band
6. Roller Post
7. Silicone
This Mach Speed Roller Hawaiian Sling pulley system, mounted within the housing, features an elastic band that wraps around two rollers that rotate about an axis perpendicular to the firing chamber. Tension is exerted on the elastic band to expel the spear.
