Bass string winders. These tools can quickly and easily detune and tighten your bass strings when changing. This can be a surprisingly tedious process and uncomfortable for your hands, and these cheap tools can make the whole thing quite painless- particularly for upright bass.
D'Addario PWPW1B String Winder String Stretcher for Bass Guitar
D'Addario PWPW1B String Winder String Stretcher for Bass Guitar Price: $6.99
D'Addario DP0002B Pro-Winder String Winder & Cutter for Bass
D'Addario DP0002B Pro-Winder String Winder & Cutter for Bass Price: $11.00
Guitar Bass String Peg Winder Pin Puller For Acoustic Electric Guitar Bass V8U3
Guitar Bass String Peg Winder Pin Puller For Acoustic Electric Guitar Bass V8U3 Price: $4.72
Plastic Acoustic Electric Guitar Bass String Peg Winder Bridge-Pin Puller O2A3
Plastic Acoustic Electric Guitar Bass String Peg Winder Bridge-Pin Puller O2A3 Price: $4.96
Guitar Bass String Winder Cutter Bridge Pin Puller Tool Musical Instruments
Guitar Bass String Winder Cutter Bridge Pin Puller Tool Musical Instruments Price: $99.95