Features: Quality material: Craft from quality material, stable for long time use. Highly frequency head adapter: Suitable for Commando 8 joysticks T-receiver antenna, providing strong signal reception performances. Simple and easy to install: Easy and quick installation, no need for complicated operation. Provide stable signal: Ensure the stability of signal transmitted between the remote controlled device and the receiver. Lightweight and portable: Small size and lightweight design, easy to carry and replace. Specifications: Material: ABS Type: 2.4GHz 40mm, 2.4GHz 70mm, 2.4GHz 220mm, 915MHz 40mm, Narrow 915MHz 70mm, Wide 915MHz 70mm (optional) Size: mixed size Package Includes: 2Pcs Receiving Antenna note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.