Hollow offset internally threaded circular barbell made in 316L stainless steel, creating an interesting look by way of a spiral formed body with two removable balls. This appealing product has the added benefit of being a large gauge but light in weight. Gauge: 8mm (0g) (5/16") Internal Diameter (i/d): 15mm Ball Diameter: 12mm, 12.7mm, 14mm Weight by sample:- 12mm balls: 22 grams (0.77 ounces) 14mm balls: 33 grams (1.16 ounces) Care should be taken when purchasing our items due to the nature of the products and the intimacy. We offer many different sizes with a lot of our products, so please take care when choosing. Please note: there may be a handling charge or custom fees on the parcel depending on country of destination. Returns Our items are packed in a quick seal transparent bag for protection and presentation. Care should be taken when ordering to ensure correct product and product size is specified. Due to hygiene reasons and the intimate nature of our products, returns/refunds can only be given if there is a manufacturing defect or the seal remains intact.