Features: 1.Good tool for greenhouse: these greenhouse twist clips are good for fixing wires, insulation materials and shadows to aluminum greenhouses, they have corrosion-resistant properties and a long time using life. 2.Sufficient quantity: you will receive 50 pieces greenhouse plastic clips and 50 pieces washers, each twist clip is equipped with a washer, suitable for insulation of green netting shading material. 3.Easy to use: just simply insert the roof channel and tighten the insulation, you can save time and effort by using our twist clips, the process dont need other tools, these washers can prevent the insulation from tearing. 4.Appropriate size: the size of greenhouse fixing clip is approx. 0.78 x 0.78 inch/ 2 x 2 cm in length and width, the size of this washer is approx. 0.98 inch/2.5 cm in diameter. 5.Reliable material: these greenhouse extender corner clips and washers are made of PP plastic, which is stable, accurate and reliable, it can withstand long-term use. Specifications: Material: PP Color: Green Greenhouse fixing clip size: approx. 0.78x0.78inch/2x2cm in length and width Washer size: approx. 0.98 inch/2.5cm in diameter Package Included: 50 PCs x Greenhouse plastic clips 50 PCs x Washers