This is the genuine Sigma tripod collar "TS-31". It is a genuine product that came with lenses (such as the APO 50-500mm OS). It is a rare accessory that is now difficult to obtain separately. How about it as a replacement for those who have been damaged or lost? The surface is smooth and feels good, and the paint is only slightly chipped, with minor scuffs on the unseen bottom edges, making it a beautiful item. 【Product Features】 ・Manufacturer: SIGMA (Genuine Product) ・Model Number: TS-31 ・Material: Magnesium alloy (lightweight and high strength) ・Shape: Wave-shaped grip for easy carrying and a good grip. 【Compatible Lenses】 Compatible with the following Sigma lenses: ・APO 50-500mm F4.5-6.3 DG OS HSM ・APO 150-500mm F5-6.3 DG OS HSM ・APO 120-300mm F2.8 EX DG OS HSM ・APO 120-400mm F4.5-5.6 DG OS HSM etc. ※Please check the compatibility of your lens. 【Condition】 ・There are almost no scratches or minor scratches from use, and there are no cracks or distortions. ・The lock knob operates smoothly and can be securely fixed. ・Please check the condition of the non-slip bottom in the photos. 【Shipping】 We will carefully pack it with bubble wrap and ship it. Instant purchase is OK. #SIGMA #Sigma #TripodCollar #TS31 #Genuine #Magnesium #50-500mm #150-500mm