Features: Quality Materials: The Snorkel strap clip sets are made of quality PC plastic material, durable and wear resistant, flexible and replaceable. Universal Size: Inner diameter: 28mm/1.1Inch. Universal fit silicone breathing tube/snorkels. Lightweight and portable, easy to carry and use. Feature: You can twisting the snorkeling strap keeper lock at any direction, can be restored when released, will not be broken, featuring nice flexibility. Quick Release: Clip design, easily connect the breathing tube to that mask strap or separate the breathing tube from that mask strap. Pack: Includes 5 pieces snorkel clips. Color: black color. The diving tube clip retainers is very practical and helpful to diving enthusiasts. Specifications: Material: PC Color: As The Picture Shows Package Weight: approx.45g Diameter: approx.2.8cm/1.10in (More Size Detail, Please See Photo.) Package Includes: 5Pcs Snorkel Clips note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!