36 Pieces Drip Irrigation Fittings: 17mm irrigation repair kit includes 2 crosses, 10 tees, 6 elbows, 12 couplings, 6 plugs. It contains all the necessary components to connect the 1/2" irrigation tubing | Crosses Connector Provide More Assembly Solutions: 2 crosses, which are rare in the market, make it easier for the irrigation system to have more branches, saving drip irrigation tubing and assembly time | For 1/2 Drip Irrigation Tubing: These 1/2 Drip Fittings with 17mm OD Barbs are compatible with most 1/2" drip tubing (.560-.600" ID) | Easy to Assemble: No tools required, push the 1/2" drip irrigation tubing over the barb of the connector with force. (Tips: Put the end of the tube in hot water for 10 seconds and it will be very very easy to assemble, even children can easily complete it) | Wide Application: These 1/2 inch drip irrigation parts are for 1/2 inch irrigation hose, suitable for garden, greenhouse, lawn, landscaping, farm, patio and other agricultural irrigation systems