Profoto Stand adapter (Umbrella XL)

Ercole M11-033B Grip Head Black ⌀ 8/16/19/25mm.

Avenger D050 Grip Handle covers Rubber for 80mm T-Handles Set of 6 T-Tops Blue.
They gives a better grip for 80mm T-handles, even in cold weather.

The 5/8″ Gag Open allows for two 5/8″ (16mm) rods to be joined and positioned anywhere in 360 degrees. One 5/8″ (16mm) pass-thru receptacle is open so that you can attach it at any point along a 5/8″ (16mm) rod. The 5/8″ Gag Open works perfectly for adding reinforcement components to a rigging structure.