Description: 【Sturdy CNC Construction】: This test stand is precision CNC machined from a single, solid block of high grade aluminum alloy, providing an incredibly stable, vibration dampening platform for breaking in and tuning your engines 【Engineered for Durability】: The aircraft model engine break in platform is with the through bolt design that all connections use steel nuts and bolts. All hardware is easily replaceable 【Precision Alignment System】: Assembling your setup is foolproof thanks to the interlocking guide slots of the methanol engine run in test stand between the L shaped engine mounts and the base 【Vibration Resistant Engine Mounting】: The engine clamp plate of the test stand is fastened with a sturdy combination of screws, spring lock washers, and flat washers. This multi part system actively resists loosening from engine vibration 【Complete Test Station Kit】: This isn't just a stand; it's a full testing solution. Included is a carbon fiber servo mounting plate for precise throttle control. With size 2.3 cmx3.4 cm/0.91 inchx1.34 inch, fiberboard inner length 4.3 cm/1.69 inch, inner width 2.2 cm/0.87 inch and maximum width 2.3 cm/0.91 inch Specification: Material: Aluminum Alloy Carbon Fiber Size Chart: 2.3 cmx3.4 cm/0.91 inchx1.34 inch Fiberboard Inner Length: 4.3 cm/1.69 inch Inner Width: 2.2 cm/0.87 inch Maximum Width 2.3 cm/0.91 inch Package Includes: 1 Set Methanol Engine Run in Test Stand Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.