Specification Brand : EVKILKJS BulletPoint1 : 【High Quality Material】This umbrella clamp is forged from the high quality plastics.Umbrella clamp for chair can be used many times in harsh outdoor environment.Reliable choices in daily life. BulletPoint2 : 【Adjustable Clamp】Large and strong clamp can clip anywhere you want.Umbrella clip for chair can be attached to bleachers, benches,tailgates, boats, poles, fences, and more, offering versatile use. It’s crucial to measure the object’s thickness before purchasing. BulletPoint3 : 【Easy to Install】Quick and straightforward assembly makes it ideal for umbrellas, flags, and fishing poles. The screw allows for adjusting the hole diameter, with a maximum clampable thickness of 2.4 inches. BulletPoint4 : 【Wide Application】Umbrella holder for chair perfect for bench,bleachers,deck railing,patio,pool,balcony,picnic table, fence,beach seat,add lots of shade with the umbrella. BulletPoint5 : 【Important Considerations】Before ordering, ensure to check the diameter of your umbrella and the thickness of your deck or railings.Umbrella holder clamp fits pole diameters up to 1.5 inches and deck railings with a thickness less than 2.3 inches. Color : Black ItemName : Umbrella Chair Clamp,Patio Umbrella Holder,Umbrella Clamp,Balcony Umbrella Clamp,Versatile Patio Umbrella Holder for Various Settings ItemPackageDimensions_Height : 0.1 inches ItemPackageDimensions_Length : 1 inches ItemPackageDimensions_Width : 2 inches ItemTypeKeyword : patio-umbrella-bases ItemTypeName : Umbrella Chair Clamp Manufacturer : EVKILKJS ModelName : BLAJ01 ModelNumber : QTL2819 PartNumber : 1 ProductDescription : This umbrella clamp can clip anywhere you want and can attach to bleachers, benches,tailgates,boats,poles,boats,fences and more.If you are looking for replacement of heavy & huge umbrella holder,this is definitely your smart choice.