Although the iQ-Plus unit seems to be a great starting point for most, for more strong willed submissives I've investigated into making a new wide version of this collar to accommodate the Dogtra 2300NCP.
The M&P Handcuffs have been my favorite standard sized handcuffs, however when looking for variants that would work better with my cuff wraps, this Model 1-1 version has been working out as a great option.
Similar to the concept of the handcuff covers, these cuff wraps came about trying to make ankle shackles (AKA Leg Irons) more comfortable and practical for longer wear.
Looking into offering something closer to a bondage restraint set, this belt takes aspects from other DSG designs and applies them to a premium bondage belt.