Stopper - Drilled No. 9.5 PURE WHITE GUM LABORATORY STOPPER - with 3/8" drilled center hole. Top diameter: 1 13/16" Bottom diameter: 1 1/2 MSRP: Was: Now: $3.99 Add to Cart
Stopper - Drilled No. 7 PURE WHITE GUM LABORATORY STOPPER - with 3/8" drilled center hole. Top diameter: 1 7/16" Bottom diameter: 1 3/16" MSRP: Was: Now: $1.99 Add to Cart
