Features: 100% brand new, 7 sizes available. Great Accessory for Slingshot Catapult Good elasticity and durability Cut it into short length as your requirement to used on different type of valves perfectly Specifications: Material: natural latex Outer dia. 14 mm approx./ 12 mm approx./ 9mm approx./7mm approx./6mm approx. /5mm approx. /5mm approx. Inner dia. 10mm mm approx./8mm approx./ 6mm approx. /5mm approx./4mm approx /3mm approx. /2mm approx. Length: 3 meter without connection.