The crossword from Geospace is the first ever state-of-the-art, super-safe, medieval-style sword that makes realistic whooshing and clashing sounds to enhance realistic play action! The crossword detects movement as kids swing it through the air and every time The sword lands a hit. It responds instantly with up to 9 different, random realistic sounds of sword swooshing or clashing. Whenever the crossword is hit, it automatically makes various clashing sounds! A special feature of geosword is the special new composite polymer material that surrounds the outer edge so it's super durable, yet totally safe for play. Embedded in the crossword body are Super bright LED lights that creates special effects during play, day and night! For age 4 years and up. for LED lights and sounds, 3 AAA batteries are required (not included). use a small Phillips-head screwdriver to open the handle and install batteries.