This a Shuffle 12 Bar Blues Progression in C using C7, F7 and G7. Use it to practice soloing. C Minor Pentatonic and Minor Blues work the best. C Major Pentatonic and C Major Blues work well too.
Here's a SLOWER Blues Shuffle in C backing track here    • Slow Blues Shuffle in C  Guitar Back...  
I have a similar Blues Shuffle in E backing track here    • Blues Shuffle in E  Guitar Backing T...  

Enjoy!