You could find Super Rectangle Magformers in the following sets:
- Magformers Funny Wheel set 20
- Magformers Sky Track Play Set 44
- Magformers My First Buggy Car - Blue
- Magformers My First Buggy Car - Pink
- Magformers My First Buggy Car - Red
- Magformers My First Buggy Car - Yellow
- Magformers R/C Cruiser Set 52
- Magformers Zoo Racing Set 55
- Magformers Math Set 87
- Magformers Power Gear Set 60
- Walking Robot Car Set 45
- Magformers Walking Dinosaur Set 81
- Magformers Adventure World set 76
- Magformers Heavy Duty Set 75
- Magformers My First Play 100
- Magformers Power Vehicle Set 86
- Magformers Mastermind Set 115
- Magformers School Series Set 180
- Magformers Steam Basic Set 200
- Brain Master Set 320
- Magformers Mega Brain Set 300
- Magformers Super Steam Set 297
- Magformers Miracle Brain Set 258
- Top Builder Set 505
- Magformers Steam Master Set 293
- Magformers Sky Track Adventure Set 64
- Magformers Police&Rescue Set