Inner diameter: approximately 16-16.5cm Bead size: See image I do not accept repairs. Please refrain from purchasing if you are sensitive to details or wish to return or negotiate a price reduction. The color of the product may appear different from the actual product depending on the monitor or PC environment you are using. ⚠️This item will be shipped via regular mail (no compensation). I will cooperate with investigations for undelivered items, but I am not responsible for damage. Shipping will be closed on weekends and holidays. If you are in a hurry or are concerned about compensation, please comment with your desired shipping method "before purchase" and I will accommodate it for an additional fee. +160 yen to change to Yu-packet Post Mini.⚠️ sb13 ha4441