KAP-IT allows anyone to raise a sprinkler head from the top instead of from the bottom. By extending the stem of a standard riser, you have raised the height. The new snap on top protects the stem extension, while leaving all of manufacturer's original parts completely intact. KAP-IT keeps the rocks and debris normally introduced into the head when a sprinkler is unscrewed below ground. The snap on top is designed to still allow regular access to the inside of the head itself, by maintaining the ability to unscrew the top of the canister with the KAP-IT, even when more than one is stacked. Simple, Secure, Fast and Permanent jump up your nozzle with a KAP-IT. Material: ABS Plastic.