Compatible with Corghi models: A9220, A9222, A9824, A9830, A2024, A2030, and older models; MTS models: MTS40, MTS830, MTS430; Hunter TCX Series: TCX50, TCX51, TCX53, TCX56, TCX500, TCX505, TCX515, TCX535, TCX550, TCX565. Replace part number: SB-4-120129B, 450310, RP11-8-11400327, RP11-8314813, AE450327. Mount demount head allows the tire to remain in the center of the wheel drop during installation, maintaining the optimal tire installation angle without the need for additional accessories. High-quality ABS material resists scratches, dents, and cuts caused by metal demounting heads; plastic duck heads prevent metal contact with wheels. Color: Black. Material: ABS. Package Contents: 2 x Tire Changer Duck Head. Note: Light reflection and different displays may cause slight color variations between the image and actual item. Measurement error allowance is +/- 1-3 cm.