Tack down tubing and keep it in place with the 1/4 in. Tubing Hold-down Stake. The 5 in. long stake, also known as a shepherd’s hook stake, is curved at the top to hold 1/4 in. tubing. A convenient irrigation accessory for keeping an emitter (attached to tubing) near the plant’s root zone without worry of the device straying. Also comes in handy to hold down chicken wire or tarp for other garden projects. Made of galvanized steel.