SharpTank Ceiling Hooks - 25 Pairs Refill Kit (50 pcs total, 25 left + 25 right) - High Strength Aluminum Ceiling Track Bar-Clamp Fastener Designed for Drop-Ceiling T-Bars - Holds up to 15 lbs Metal t-bar hook designed for displaying student work, mobiles, signs, and decorations Ideal for classroom use Manufactured from high strength aluminum with a white enamel finish Two piece hooks that lock together along a t-bar to form a secure support for drop ceilings Each hook holds up to 15 lbs; 1" width, 1.5" height