Two Way Use, hanging with S hooks or pole-mount on shepherd poles with dia. ranged 0.5inch~1.3inch (1.2~3.3cm) Larger Size, diameter 13 1/3 inch (33cm) providing a protection for your feeders against squirrel, rain, snow Sturdy Use, 4mm thick tempered plastic for a lifelong durability & rubber cushion against collison / scratches Stainless Hook, up-to-18lb / no rust in all weathers outdoor Simply , transparent view and hassle-free maintenance, making your garden more attractive note:(The product is made of plastic material, which may be different from the picture and will not affect the normal use.) Colour:As Shown Material:plastic Size: 33 x 33 x 9cm Package Contents: 1 x Glass Squirrel Baffle for Bird Feeders Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.