We're definitely not the only game in town.
But we are striving to produce products that R/C modelers and other hobbyists will find useful and convenient.
Our Sampler Kit has the four fillers that anybody that works with balsa, plywood, foam need to enjoy building or repairing.
See
https://www.amazon.com/Epoxy-Filler-...StegallHobbies for the 4 ounce size.
And
https://www.amazon.com/Epoxy-Filler-...StegallHobbies for the 8 ounce size.
The Completer Starter Kit is going on Amazon this weekend. It adds 4 more kinds of fillers combined the the ones in the Sampler.