Two Vintage 1950's Japanese Glass Rolling Pin Floats

I am listing items for a local woman, the items came mostly from her Great Grandparent's and Grandparent's estates.  Her uncle used to walk along Horsfall beach in the early 1950's and look for floats.  I have several to sell.  The largest is 7 inches in diameter and about 6 inches long. The smaller one is a little over 5 inches in diameter and 5 inches long.