These small silver flowers are approx. 8mm. They are light weight. The barbells are 14 ga surgical stainless steel and hypoallergenic. The length of the barbell is 5/8". *5/8" 14ga Surgical Stainless Steel Barbells * Approx 8mm flowers (do not screw off) These nipple rings are sold as a set Thank you for buying handcrafted. Please note body jewelry is not returnable or refundable for sanitary reasons. Thank you!