Everyone's favourite team member, Hal is named after the mastermind of decompression theory - John Scott Haldane. Life is ball and ball is life, if you come down to Honest HQ try not to get into a mammoth fetch session! Keep an eye out for Hal's Howlers - he's got some very special deals for you!
If weight of displacement more than weight of ball, ball float. If weight of displacement less than weight of ball, ball sink. Why so many balls at bottom of training tank?? You fetch?