The fit on this small RX-090 plug is spot-on—snapped right in and feels snug, no wobble like the old one. Paid a bit more than I'd like for a rubber part, but honestly worth it to keep the collar working without fuss.
Slightly pricey for such a small part, but this RX-090 plug fits perfectly and saved me from buying a whole new receiver. The rubber feels durable enough that I'm not worried about it popping out during a hunt.