Nipple Bulb lets your nipples rise to any occasion. Nipple enhancing bulb with 4 erection rings. Safe and pure for body and pleasure. Made using phthalate free, non-toxic materials ABS plastic nozzle, PVC bulb, rings. Tip diameter .4 inch. Bulk weight 1.4 ounces. Pursuant to 18 U.S.C. 2257, Nipple Bulb was produced on November 21, 2001, and the records required to be kept by that law are available at 14235 Ramona Avenue, Chino, CA 91710. Custodian of Records: S. Colvin. Category: For Women, Attire & Adornments, Jewelry. Nipple Bulb is a registered trademark for California Exotic Novelties. Sex toys and sexual wellness. Made in the USA. 16.