... suitable only for target game for children and adults to play.3.How to use (1) darts methodBeginners can use the method of ... equal,natural,coherent ,fluent and complete, do not pause in the middle process.( 2 )The whole process, forearm and hand should be always ... sports require eyes rhythmic aim, relax, virtually to the eyes relax and exercise, do eye exercises, this for a long time in ...