Nite Ize S-Biner #1/Black #2 Dimensions: 2" x 7/8", Load limit: 10 lbs; 3 pack: includes one #2, #3, and #4 S-Biner #3 Dimensions: 2-5/8" x 1-1/8", Load limit: 25 lbs #4 Dimensions: 3-1/2" x 1-1/2", Load limit: 75 lbs #5 Dimensions: 4-3/8" x 1-15/16", Load limit: 100 lbs #1 Dimensions: 1.5" x 0.5", Load limit: 5 lbs