Base, Rod, Suitable Meter Clamp, and Protective End Cap are included. Each stand is built for specific Bubble-O-Meters:
Micro Meter Stand: Micro Meter
Small Stand: 1-10 ml and QUAD 100 Meters
Medium Stand: 1-10-100 ml and 1-10-500 ml Meters
Large Stand: 10-100-1000 ml, QUAD 500 and QUAD 1000 Meters