Product Specs: Our kayak drain plug measures 1.38in (3 cm) in diameter and 2.5 cm in height. Please check the dimensions to pick the right scupper plug for your kayak. Easy to Install: Upgraded silicone handle replaces regular lanyard handles with double reinforcement. The handled drain plug is easy to install, remove and carry. Leak-proof Multilayered Design: Multi-layer coils on these kayak drain plugs form a watertight seal inside scupper holes to stop water seepage, keeping your kayak dry and clean on the water. Premium Material: Scupper plugs are crafted from high-quality rubber that resists saltwater. Strong yet lightweight, perfect for kayak drainage systems.