【Premium Material】Stainless steel. The bracket has high rust resistance and will not rust, extending the service life and saving terminals. 【Quantity and Sizes】The glass clips at 25PCS greenhouse clips measure 7.7 * 3cm / 3 * 1.2inch, 25PCS Z overlap clips measure 1.2 * 0.9cm / 0.5 * 0.4inch, with high stability. 【Excellent Function】Greenhouse spring clips protect your plants, vegetables, fruits and lettuce from hail, rain, wind and intense sun in all seasons. 【Wide Uses】Suitable for almost all aluminum frame greenhouses, a variety of materials, such as hollow slabs, multiple wallpapers, glass greenhouses, etc. 【Warm House Helper】 In case of typhoon or thunderstorm, you can prepare these clips in advance to reinforce your greenhouse glass to avoid damage.