 Hangers designed to tow sledges uphill are installed on some slopes by operators, and some operators convert hangers in the summer to tow cyclists uphill.A variant of the platter lift is the detachable surface lift, commonly known as a “Poma lift”, after the company which introduced them.Unlike most other platter lifts, which are similar to T-bars with the stick attached to a spring box by a retractable cord, Poma lifts have a detachable grip to the tow cable with the button connected to the grip by a semi-rigid pole.