Excellent Material: This product is made of excellent plastic, sturdy and long-lasting. The operation is safe, accurate, and highly reliable. It will withstand long-term utilization. Make a Gap: This product leaves a gap between the bubble wrap and the greenhouse glass. It can effectively avoid polyethylene bubbles from contacting and sticking to the greenhouse glass. Long Service Life: This product is an ideal choice for fixing wires, insulating materials, and shadows in aluminum greenhouses. It has the characteristics of corrosion resistance and long service life. Wonderful Practicability: This product can support vine crops or hold a spray system. You can also hang small plants, baskets, pots, or watering cans to remain your plants in order. Secure Fixing Clips: Fixes securely inside aluminum greenhouse glazing bars. Take full advantage of the space of your greenhouse effectively and lively. Use the clips to create your use of the unused space. Note: Greenhouse clamps are only suitable for greenhouses with rust-proof frames, not for lighter weight greenhouses.