Kotaro Pro Bamboo Kendama Toy with Extra String Don't Settle For Cheap Knockoffs! Look for the logo. Buy the pro level Kotaro Kendama. If it doesnt have the KK logo, it isnt a real Kotaro. Named After Fuma Kotaro, the Legendary Ninja Clan Leader in Ancient Japan. . Ninjas are known for their agility and speed. Do you have the eye hand coordination to use the Kotaro Kendama? Full Sized Bamboo Kendama. Dont be tricked into buying a tiny one that isnt any good. Replaceable String. Kendama strings are like yoyo strings. They wear out! Be sure to buy extras so you can replace them if they get dirty, knotted or frayed. Each kendama includes 1 extra string to get you started! Traditional 7.25" size from top to bottom when ball is on the spike. Handle is 6 1/4" from bottom to tip of spike. Spike is approximately 1 1/2"