One pair of lighweighted. adjustable breast nipple clamps with short metal chain and with clear round decorative glass balls. It can be used for both as bondage restraint breast stimulation and also to massage breast and promote blood circulation. - it's lightweight and portable. more convenient to store and carry out. - Comfortable to wear. not easy to fall oft let you enjoy a special night. - Made of high- quality iron and glass material. durable and practical for long- lasting use. - Glass ball clamps. make you sexy and eye- catching and show the charm and beauty of women.