Mount 702 Extension Tube VD/FD/FER5701-Q2270/SD272

Features:

Four options are available.
Dimensions: Ø 5.4 x 10 or 20 or 30 or 50 cm
(Ø 2.1 x 3.9 or 7.9 or 11.8 or 19.7")

Weight: 180 g or 390 g or 550 g or 800 g
(0.4 lb or 0.86 lb or 1.21lb or 1.76 lb)