Package Kit: You will get 50W clamps and 50Z overlap clamps, enough quantity can meet your different needs and is an important auxiliary tool for greenhouse construction. High Quality: Our greenhouse glass clamps are made of high quality 304 stainless steel, with rust resistance, high sturdiness and durability, and long service life, which can ensure the safety of your greenhouse. Size: The size of the greenhouse W clamp is 90*40mm, and the thickness is 1.5mm; Z overlap clamp size is 12*9mm. Suitable for most greenhouses. (Reminder: Please confirm the required size before purchasing.) Ideal greenhouse accessories: The W-clamp glass clamp can be installed quickly and easily, holding it firmly. In response to bad weather, typhoon or heavy rain, you can prepare these clips in advance to reinforce your greenhouse glass panels and protect your greenhouse from heavy storms and rain. Wide Application: Our glass clamps are suitable for most aluminum greenhouses and are ideal for a variety of materials, such as hollow panels, multi-layered wallpaper, polycarbonate panels, double panels, multi-layered panels, glass greenhouses, etc. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.