CBR 【Size】 Hole Size: 14G (approx. 1.6mm thickness) Shaft (Inner Diameter): 10mm Ball: 4mm 【Quantity】4 pieces 【Material】Surgical Stainless Steel 〈Regarding Removing the CBR Ball〉 The tightness is not adjusted as it depends on personal preference. If it's difficult to remove, please use pliers or dedicated jewelry pliers. We will carefully package and ship your order. The product will be placed in an OPP bag and then wrapped with bubble wrap. ⭐️Please let us know before purchasing if you would like to change the quantity. 2 pieces for 399 yen, 3 pieces for 450 yen, 4 pieces for 499 yen, and 120 yen for each additional piece. *We will proceed with the transaction assuming that you have read the product description and profile.