Battery holder for 8 AA batteries = 12V ・KO Propo EX-I ・Futaba Magnum Racer (FP-T2PKFA) Confirmed to fit the following ↓ youtu.be/rhri3Op0Kgk ・KO Propo EX-I PRECIOUS ・KO Propo EX-I Mars ・KO Propo EX-2 EX-II ・KO Propo EX-7 ・KO Propo EX-9 ・Futaba Magnum PCM (FP-T3PG-X) ・Futaba Megatech PCM (FP-T3PB) ・Tamiya Adspec ADSPEC ・Sanwa DASH-S (box separate type) ・JR Propo BEAT202 Also confirmed to fit Although unconfirmed, it seems usable with the following models: Futaba FF7 FP-T7UAP FP-T7UAF Futaba FF5 FP-T5UAP FP-T5UAF Futaba FF3 FP-T3UCP Futaba Megatech FM KO Propo EX-5 KO Propo EX-10 Eurus KO Propo EX-10 Helios JR Propo MAX series JR Propo BEAT2 JR Propo X-347 PCM Packaging will be "product directly in an envelope" (as the thickness is barely within 3cm) Thank you. ※ If you need multiple items, please consult in the comment section before purchasing. We will accommodate at an additional 420 yen per item.