Description This item is a simple and practical magnetic treadmill safety key with a diameter of 2.3 cm, designed to fit into the round hole on the treadmill console to start the machine. As long as your key slot has a diameter of 2.3 cm, this safety key is compatible with various treadmill brands such as York, Bremshey, Horizon, Proform, and others. Features - Color: Red - Material: Durable hard plastic and magnet - Key diameter: Approximately 2.3 cm; Cord length: Approximately 140 cm - Magnetic treadmill safety key for secure operation - Fits into the round hole on the treadmill console to activate the machine - Universal compatibility with treadmills that have a matching key slot size - Simple and practical design for easy use Packing List 1 x Replacement Magnetic Treadmill Safety Key – 2.3 cm Diameter (Red)