These particular Mini Butts are Small Spiroloc threaded and therefore compatible with the vast majority of cues made in Thailand. The exceptions that I know of are Ton Praram and Mastercue. Siam Rosewood No 64 6.25".
PERADON 6"ROSEWOOD MINI BUTT END EXTENSION FOR PERADON CUES ONLY (S1639)
Handmade 57" Ash Shaft Rosewood Butt 3/4 Snooker Cue - Female Thread Mini Butt
PRO147 CLASSIC ROSEWOOD P3/E 57 Inch Snooker Pool Cue Set 2pc Centre Joint Non-matching Ash Cue Long Telescopic Extension, Mini Butt and 3 Slot Case - 9.5mm Tip
57 Inch Hand Spliced Rosewood and Ash Snooker Cue with 9.5mm tip and Mini Butt
Peradon 6" EBONISED MINI BUTT END EXTENSION CUES ONLY (S1640)**
CUESOUL 57 Handcraft 3/4 Jointed Snooker Cue with Mini Butt End Extension Packed in Aluminium Cue Case (D306)
