Rigid combination of wrist and ankle irons.
Screw lock (with flush head Allen screw), wrench included.
Diameters:
Wrist inner diameter: 6.7 cm, inner circumference 22 cm (8 3/4“)
Ankle inner diameter: 8.6 cm, inner circumference 30 cm (11 3/4“)
Weight: 3 kg (6.6 lbs), thickness: 8 mm, total length: 43 cm (17“), width: 4 cm (1 1/2“).