The HK Standard (previously HK121) calf puller is the world's original calf puller. Made in Germany, it is 100% reliable. The grooved shaft never slips. The modern, model 2020 traction device, gives smooth pulling power on both foward and backward strokes. Pulling can be either tandem (legs together) or sequential (one after the other) depending on hooks engaged. A thumb-operated quick-release lever is incorporated. An excellent feature is the split-apart 1.7m-long main pole, making for an easy transport on bike or quad. And easy storage. (Disassembled length 85cm o.a.) Supplied with specially-produced 'padded' nylon ropes.