This is a Glo Caddy from Dubro.
FEATURES: This caddy will hold Sub-C or C size battery glow starters. Plastic construction. Attaches to a pants belt or pocket with the included clip, or using the included base and screws, can be mounted to a field box. Keeps your glow starter at a finger-tip's reach!!
INCLUDES: One Glo Caddy One Field Box mounting base Two phillips head screws
SPECS: Outer Diameter: 1-3/8" (35mm) Overall Height: 2-3/16" (55mm) Top Inner Diameter: 1-3/16" (30mm) Bottom Inner Diameter: 11/16" (17mm)