Battery holder for 8 AA batteries = 12V ・KO Propo EX-I ・Futaba Magnum Racer (FP-T2PKFA) Confirmed to fit ↓ youtu.be/rhri3Op0Kgk ・KO Propo EX-I PRECIOUS ・KO Propo EX-I Mars ・KO Propo EX-I UR ・KO Propo EX-2 EX-II ・KO Propo EX-7 ・KO Propo EX-9 ・KO Propo EX-10 HELIOS ・KO Propo EX-10 EURUS ・Futaba Magnum PCM (FP-T3PG-X) ・Futaba Megatech PCM (FP-T3PB) ・Tamiya Adspec ADSPEC ・Sanwa DASH-S (box separate type) ・JR Propo BEAT202 ・JR Propo XS3 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-3 KO Propo EX-5 KO Propo EX-10 KO Propo EX-11 PRESTO JR Propo MAX series JR Propo BEAT2 JR Propo X-347 JR Propo X-756 JR Propo X-3810 JR Propo X-388S JR Propo R-756 Kyosho PERFEX KT-5 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.