Twin Circles & Twin Square 2

Useful generic injection-molded detail parts for your modeling needs. This set features "twin circle" parts, as shown here. Each twin circle is constructed of two parts each: the outer "tube", and an inner "plug". Enough parts for four twin circles each of the following nine sizes (all sizes in millimeters, width x height): 5 x 35, 6 x 4, 7 x 4, 8 x 4, 9 x 5.5, 10 x 6, 11 x 5, 12 x 7, and 13 x 7. (Description and photos courtesy HobbyLink Japan.)