A brim, which is the most commonly used bamboo swords.Please choose according to your own bamboo sword.Transparent Tsuba Material: Plastic; Size Guidelines: S (inner diameter 1.1 inches (28 mm)): Under elementary school students (~3.6 mm)); M (inner diameter 1.2 inches (30 mm)): Elementary school students to middle school students and above (3.7 mm); *The above are for reference only.If it does not come in properly, please use a small blade to sharpen the inner diameter. The color of the actual product may differ slightly from that of the product depending on your display and monitor settings.Please acknowledge