The Nagaoka AD-653/2 spacer for your 45 RPM records weighs in at 21 grams. This precision machined aluminum adaptor, made in Japan, is sure to stay in place when you are lifting up your 45's. No more will you have to deal with your lightweight adapter flopping around when you remove your 45RPM record.
Our private label offering weights in at 20.9 grams. Possibly because it does not have a center label like its Nagaoka counterpart.