Dyneema core for ultimate strength, anti-snag and barrel glide.
Straight release pin will release with 30% more line tension than bent pin releases will.
No head stainless steel release pin means the tow bridle cannot lock over the head like it can on parachute release pin type releases when used with Dyneema core.
Super small form factor makes snagging and premature release (on base bar for eg) less likely than bulkier releases.
Just the right amount of barrel friction to prevent premature release but ensure safe release when slack line tension (weight of sagging tow rope) is on the line.