ASA's instrument plotter includes all current IFR chart scales, and features:

12 scales to accommodate both NACO and Jeppesen instrument charts (see velow)
Conversion scale for nautical and statute miles
Holding patterns depicted for both standard and nonstandard entries
Compass roses allow quick course and bearing information
Professional layout enabling easy reading during enroute spot checks
Made of durable Lexan® resin so plotter won't warp or break in extreme temperatures
Guaranteed — Lifetime warranty!
Scales included on Standard side:
1=5
1=8
1=10
1=12
1=15
1=23
NM to SM

Scales included on Nonstandard side:
1=7
1=7.5
1=14
1=16
1=20
1=31
NM to SM