5/16" x 1-1/4" Carriage Bolt by Color Galvanization of Square Neck with Nylon Lock nut and Large Size Washer Assortment Kit,Carbon Steel,Grade 2.(8pcs Pack) 5/16" x 1-1/4" 8 home2022 DURABLE: Large grinding segments with

DURABLE: Large grinding segments with heat-treated steel bodies of our concrete grinding wheel increases durability

It can be left on thick or rubbed into skin

for shin splints

soft sponge

but doesn’t leave residue behind 1/2" thickness designed for fingers and toesNot only used by Jiu Jitsu athletes

5/16" x 1-1/4" Carriage Bolt by Color Galvanization of Square Neck with Nylon Lock nut and Large Size Washer Assortment Kit,Carbon Steel,Grade 2.(8pcs Pack) 5/16" x 1-1/4" 8 home2022 DURABLE: Large grinding segments with5 16" x 1 1 4" Carriage Bolt by Color Galvanization of Square Neck with Nylon Lock nut and Large Size Washer Assortment Kit,Carbon Steel,Grade 2.(8pcs Pack) Product Features Size: Diameter 5 16 inch, Length 1 1 4 inch 18 pitch. Material: Made of high quality low carbon steel and color Galvanization to make Carriage bolts much more strength and Resistant to Rust. there are no issues of biting death or thread damaging to compare with nonrust steel bolts