Features:Made of high quality material, durable for long time use.Easy to install on or remove from the kayak.Fine threads maintain sealing under high vibration conditions.It stops water infiltration and is used to drain the water out of the inner hull of your boat.Specification:Material: PVC/PlasticColor: BlackSize: Approx. 5.5*5.5*3.5cm / 2.2*2.2*1.4inchWeight: Approx. 9gPackage List:Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.