A complete bowling set (lane pieces, backstop, magnet holes in pins and last lane, pins, ball, ramp for aiming, push stick for aiming). This is a fun game for the whole family. You can print as many lane segments as you want to make more/less challenging. The lane pieces interlock so there's no worries when lining them up.

I have holes in the bottom of the pin-setting/backstop (last lane) and under each pin. These holes are meant for 3mm dia. x 1.5 mm thick Neodymium magnets. This makes lining up the pins a snap and it's perfect each time. Lining up the pins isn't horrible without the magnets, the magnets just make it much easier.

IMPORTANT: Print each lane segment, including the pin-setting/backstop and "launchpad" segments, on their top (the bowling surface down). This will make for a nice smooth surface for the ball.

Thanks, Enjoy!