This D0201.24 Hose Clamp from Gitzo is for select tripods and monopods, the GB3560 microphone boom, and the GS5510XLS center column. It comes in two parts, and guides the leg sections, preventing one section from separating and pulling all the way out of another section. This is included with the compatible gear, and is sold here as a spare or replacement part.
Compatibility
Microphone Boom: GB3560
Monopods: GM1130MT, GM2340, GM2341, GM2540, GM2541, GM2942, GM3340L, GM3350XL, GM3550, GM3551, GM5560T, and GM5561T
Center Column: GS5510XLS
Tripods: DGT2540T, GK2520FT, GT2330, GT2331, GT2340L, GT2340VC, GT2341L, GT2530, GT2530EX, GT2530LVL, GT2531, GT2531EX, GT2531LVL, GT2532S, GT2540, GT2540EX, GT2540F, GT2540G, GT2540LLVL, GT2540LVL, GT2541, GT2541EX, GT2541G, GT2541L, GT2542L, GT2542LOS, GT2542LS, GT2542S, GT2830, GT2840C, GT2931, GT2932EX, GT2941L, GT2941LLVL, GT2941LVL, GT2942L, GT3330, GT3330LS, GT3530, GT3530LS, GT3530LSV, GT3530S, GT3531, GT3531LSV, GT3531S, GT3532LS, GT3532LSV, GT3532S, GT3540L, GT3540LS, GT3540XLS, GT3541, GT3541LS, GT3541XLS, GT3542LOS, GT3542LS, GT3542XLS, GT3830, GT3840C, GT4542LS, GT4552GTS, GT4552TS, GT5560SGT, GT5561SGT, GT5562GTS, and GT5562LTS
Monopods: GM1130MT, GM2340, GM2341, GM2540, GM2541, GM2942, GM3340L, GM3350XL, GM3550, GM3551, GM5560T, and GM5561T
Center Column: GS5510XLS
Tripods: DGT2540T, GK2520FT, GT2330, GT2331, GT2340L, GT2340VC, GT2341L, GT2530, GT2530EX, GT2530LVL, GT2531, GT2531EX, GT2531LVL, GT2532S, GT2540, GT2540EX, GT2540F, GT2540G, GT2540LLVL, GT2540LVL, GT2541, GT2541EX, GT2541G, GT2541L, GT2542L, GT2542LOS, GT2542LS, GT2542S, GT2830, GT2840C, GT2931, GT2932EX, GT2941L, GT2941LLVL, GT2941LVL, GT2942L, GT3330, GT3330LS, GT3530, GT3530LS, GT3530LSV, GT3530S, GT3531, GT3531LSV, GT3531S, GT3532LS, GT3532LSV, GT3532S, GT3540L, GT3540LS, GT3540XLS, GT3541, GT3541LS, GT3541XLS, GT3542LOS, GT3542LS, GT3542XLS, GT3830, GT3840C, GT4542LS, GT4552GTS, GT4552TS, GT5560SGT, GT5561SGT, GT5562GTS, and GT5562LTS