Product Description: Scupper plugs are fitted into kayak scupper holes to keep water from coming into your kayak scupper holes are a safety feature found in sit-in-top kayaks that allow drainage and prevent water from pooling. The plugs are typically utilized in choppy conditions or when the kayak is more heavily weighted down. Perception&';s scupper hole plugs are designed with finger tab extensions for quick draining when needed. Scupper Plugs are an essential item for any kayaker who wants to enjoy the benefits of their sit-on-top kayak all year long, enabling more comfortable cold weather paddling or for anyone who just wants a drier ride. These plugs will fit sit-on-top kayaks with a scupper hole diameters from 1" to 1-3/8". Features: Keeps water from entering your sit-on-top kayak through the scupper holes Finger tab extensions allow you to easily pull for quick draining Pre-drilled holes on finger tabs allow plugs to be tethered Tapered design fits scupper holes from 1 & to 1 3/8 (2.5cm to 3.5cm) in diameter Diameter of the plug starts at 0.875 in. and increases to 1.5 in. at the top Works with Wilderness Systems, Dagger, Perception and a variety of other sit-on-top kayaks