Material: METAL Size: 1/4" Assembled Product Length: N/A Assembled Product Height: N/A Assembled Product Width: N/A . Staples 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