Waves Acoustic Ms45 Pro Overview: Ms45 Pro  Professional studio monitor and speaker stand Made by steel. Steel tray with non-slip rubber to grant stability and vibrations reduction. Locking pin for locking and height adjustment, center safety knob ensure round pipe gripe. Triangular base with under rubber feet insulation. Features: Height-adjustable stand for studio monitors. Locking pin ensures stable and accurate height positions. Leveling floor isolation rubber feet included. Low-profile base can be easily positioned into tight spaces Specifications: Adjustment Of Stands Locking Height: 32.25, 36.25, 40.25″, 44.25″ (819mm, 920 Mm, 1022mm, 1124mm) Top Platform Dimensions: 9″ X 9″ (229mm X 229mm) Stand Floor Base Dimensions: 17.25″ X 17.25″ X 17.25″ (438mm X 438mm X 438mm) Weight: 3.9 Kg Weight Capacity: 26 Kg