Material: METAL Size: 9/16" Assembled Product Length: N/A Assembled Product Height: N/A Assembled Product Width: N/A . FOR USE WITH TACKERS #T-50M Staple gun tacker #T-50MP Staple gun kit #HT-50A Staple hammer tacker #T-55 Staple gun tacker #ETN-50 Electro-matic tacker