Description:The speaker spike is made of OFC heat resistant and durable.Each kit of the speaker spike is consists of a spike a base pad and 2 pieces of two-sided adhesive tape.It has good shockproof capability thus it will effectively protect the amplifier from shockingIt is easy to install just follow the directions clean the floor at first and then apply it to a suitable place.Specification:Color:goldMaterial:OFCBase pad diameter: about 25mmBase pad height: about 5mmSpike diameter: about 28mmSpike height: about 25mmDepth of the base pads hole: about 3.5mmLength of the screw rod: about 6mmSuitable for: amplifiers audio equipment etc.Package included:4Pcsx speaker spike(each includes a spike a base pad and 2 pcs of two-sided adhesive tape)Note:1.Due to the light and screen difference the item& 039;s color may be slightly different from the pictures.2. Please allow slight deviation for the measurement data and make sure you do not mind before ordering.