These are 1/2A T-Style Control Horns.

Features

Nylon construction

Includes

Two control horns w/4 adjusting holes and 2 mounting holes
(3/4" long {tall})
Two mounting plates w/2 mounting holes (3/8"x3/8")
Four 2-56x3/8" round head screws

Requires

A flat head (slotted) screwdriver

Specifications

See "includes" above