Maybe one of these similar products would be of interest:-

Lifeswell Steel Calf Raise Bar, Versatile Standing Calf Raise Machine, Wider Anti-Slip Solid Calf Block, Rounded Edge Design, Perfect for Calf Stretching, Squat, Foot Stretch, 800 lbs Capacity

Kipika Versatile Calf Raise Bar - Heavy Duty Steel Standing Calf Raise Machine for Home Gym, Anti-Slip Design - Perfect for Calf Raises, Squats, Foot Stretches & Dip Exercises - Supports up to 800lbs

Steel Calf Raise Bar Versatile Calf Raise Machine Standing Calf Raise Block Anti-Slip Design for Calf Stretching, Squat, Foot Stretch (Black-S)

Steel Calf Raise Bar Versatile Calf Raise Machine Standing Calf Raise Block Anti-Slip Design for Calf Stretching, Squat, Foot Stretch (Black-L)

Versatile Calf Raise Bar - Heavy Duty Steel Standing Calf Raise Machine for Home