Sports buoyancy glasses lanyard Colours: green, red, navy blue, yellow Sport, Chain Strap size: 12 x 0.5 inches, silicone tube size: 2.25 x 0.2 inches Material: Nylon and Foam Nylon and Foam Nylon and Foam Nylon and Foam Nylon and Foam Nylon and Foam PACKAGE CONTENT: You will receive 4pcs sports glasses straps in different colours. Ample quantity, different colours allow you to match different types of swimwear and clothes, I think it can meet your needs. 1.QUALITY MATERIAL: These sunglasses straps are made of high quality polyester fibre and foam tubing, sturdy and durable. They can float on the water surface and prevent you from falling into the water. The silicone tubes attached to the temples are very soft and can protect the glasses feet better. 2.SIZE The floating sunglasses band is 68cm long and 32cm long when folded, just the right length. Please note that the silicone tube does not fit narrow glasses. Please check our product dimensions before purchasing. 3.USE ANTI-SLIP: Sleeve on the end of the glasses feet, prevent glasses from slipping off when you are exercising (such as running, swimming, playing ball, dancing). 4. Suitable for people: sports-loving people, children who need to use their eyes to fix their glasses, elderly people who often wear glasses. 5. Easy to install and remove: you just need to fix the silicone tube on the temples and then move the adjustable buckle to fit your head. In addition, the silicone material can also be fixed on the temples to prevent the temples from falling off. 6.VERSATILE USE: Our floating sunglasses straps are perfect for boating, kayaking, surfing or water sports, and they are also suitable for fixing different sizes of glasses. They make great gifts for family, friends or yourself.