Stopper - Drilled No. 8 PURE WHITE GUM LABORATORY STOPPER - with 3/8" drilled center hole. Top diameter: 1 5/8" Bottom diameter: 1 3/8" MSRP: Was: Now: $3.49 Add to Cart
Stopper - Drilled No. 10 1/2 PURE WHITE GUM LABORATORY STOPPER - with 3/8" drilled center hole. Top diameter: 2 1/16" Bottom diameter: 1 3/4" MSRP: Was: Now: $3.99 Add to Cart
Stopper - Drilled No. 11 PURE WHITE GUM LABORATORY STOPPER - with 3/8" drilled center hole. Top diameter: 2 1/4" Bottom diameter: 1 15/16" MSRP: Was: Now: $3.99 Add to Cart
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
