How much does this cost to the nearest dollar?

Sliding Ruler - Magic tool for the practice of PENTATONIC, DIATONIC and MODE scales/Pentatonic Sliding Ruler for Guitar The essential tool for ALL Guitarists
NEW! SLIDING RULER FOR GUITARISTS! FOR GUITARIST OF ALL LEVELS - Give yourself the gift of having the “ALL IN ONE” tool to practice your scales! Instructions included. COLORFUL SHAPES - The five positions of the pentatonic scales are presented in bright colors to help you memorize them and clearly see their relation to one another. FOR BEGINNERS – Learn your first pentatonic scale in no time and impress yourself and your friends around! FOR MORE ADVANCED GUITARISTS –Practice your pentatonic scales,

Price is $24.00
Price: $24.49