Went to shipping to check these and the standard size Black and White are both .580" core size. The Black standard grips weighted between 48.5 and 50 grams. The White standard size grips weighted between 52 and 54 grams. The Black Midsize grip has a .600" core size and weighted between 60 and 62 grams. We will get this information corrected.
Date published: 2015-10-14