Description:Name: Scupper PlugProduct function: can prevent water from immersing into the kayakProduct color: red + blackProduct material: siliconeInstallation location: at the kayak drainage holeScope of application: suitable for kayaks, canoes, assault boats, etc.Packing list:Scupper Plug x 4Note: This product has a certain degree of flexibility, please press it firmly during installation to prevent it from loosening and falling off