Rubber Sleeve for Perforated Flask


No more messy masking tape! These latex rubber sleeves are placed over the flask to contain the investment while pouring and also form a collar so that no spilling occurs. Dimensions listed are for the flask that each sleeve will fit. Sleeve must be removed prior to burnout. Choose from three sizes: 3-3/8" x 4", 4" x 5-3/4" or 4" x 7".

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