Champion Children's KC-1 42'' Billiard Maple Pool Cue Stick for Kids (42 Inch, from 16 to 19 Ounce) 42 Inch length,Shaft:hardwood Canadian maple hard wood Forearm:Canadian hardwood maple wood with Painting wrap Joint: 5/16 x 18 Pin,Tip size:13mm For more detail about the cue,please visit www.championcue.com Aim trainer introduction:http://youtu.be/VgVlmYDSA-U