Known as "the stick" these self care tools can be great to bring on the road, to work, ect. it's versatile and doesn't take up to much room. (click on the image, and it will take you to where it can be purchased)
This ball in particular, is the middle ground between a tennis ball (softer with more give) and a lacrosse ball (harder with very little give) Great to use on the glut muscles, in between shoulder blades ect. (click on the image and it will take you to where it can be purchased.