The smallest tug available from Need Some Sun, measuring in at 8" long. 

The Micro has some of the smallest balls we've managed to find.  All the balls are squishy and soft to fold well into a pocket!

Micro Ball options include:

Mini Roller

Raspberry

Small Chase and Chomp Ball

Medium Ball Options include:

Planet Dog Golf Ball

Totally Pooched Huff'n Puff Ball

ChuckIt! Fetch Ball M