Unresponsive yo-yo which means you need to learn how to do a 'bind' to to return to hand.It's for medium players.Stable and Balanced high speed routines are advantage from it made of premium quanlity Aluminum alloy.For 8 years or up.It's a nice way to keep the kids from addicting Internet and television.It can cultivate the imagination, creativity and rapid reactionability 1A( Single Hand String Trick): The player uses a long spinning yo-yo to tricks that typically require manipulation of .3A( Two Hands String Trick): The player uses two long spinning yo-yos and performs tricks with both simultaneously.5A( Counterweight): The player uses a yo-yo with a counterweight on the other end of rather than having it attached to a finger.Series:T6 Style:string trick (1A, 3A, 5A) Colour:blue Material:Aluminum alloy Size: Diameter:50.4mmWidth:41.2mmspace width:4.21mmBearing size:size C () String length: 43.31 in/ 110 cm Weight:67g Package Contents: 1 x ball 1 x glove 1 x velvet bag 5 x rope (random colors, 't accept the specified color) Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3cm.