TK410 30.15 x 41 x 7 45°/45° Typical use 1-1/8" internal and integrated Headset. MH-P03 30.15 x 41 x 6.5 45°/45° Typical use 1-1/8" internal and integrated Headset. MH-P03K 30.15 x 41 x 6.5 36°/45° Typical use 1-1/8" internal and integrated Headset.
eBay