Low carbon steel, plain finish Size: 3-3/8" x 3-3/8", Thickness: 1/4" 7/16" x 1-1/2" Slot hole, suitable for 1/4" chain link 5.5 oz per chain keeper, 2.9 lbs for 8 chain keepers 8 x Weld On Chain Keeper Specification Material: Low carbon steel Finish: Plain Size: 3-3/8" x 3-3/8" Thickness: 1/4" Slot Hole Size: 7/16" x 1-1/2" Suitable for 1/4" chain link Package Size: Weight: 5.5 oz per chain keeper, 2.9 lbs for 8 pcs chain keeper Size: 4-11/32" x 3-3/4" x 2-3/16" Packing List 8 x Weld On Chain Keeper