SharpTank Classroom Ceiling Hooks - High Strength Aluminum Ceiling Track Bar-Clamp Fastener Designed for Drop-Ceiling T-Bars - Holds up to 15 lbs (Bulk Pack (100 Pairs))

Good quality. Left and right come in separate bags, which was brillant. I just did not read the instructions and pour them all together. Don't make my mistake and mix.

Used it to hang lights in my classroom. Easy to hang and blend in well with the ceiling.