Combination: 20 pack 3.5 inche long, 1.77 inche tall, can open the 1.57 inche | High quality stainless steel, anti-rust, durable, non-magnetic | After the upgrade, elasticity is very powerful, effectively maintain clothing antiskid or blown away | Arc design, can be used in the broader environment, such as: railing tables and chairs, etc | Interface after many polishing, not harm the skin and clothing