T25 staples feature a round crown design that secures wires without damaging them. The leading choice for low voltage wire applications; the T25 staple is an absolute boss when installing garage door openers; thermostat wire; doorbell wire; alarm systems; and much more. Also works great on computer; CAT5/CAT6. RG6/RG9; COAX and phone cables. All Arrow T25 staples are made under strict quality controls."