This is the downpayment for 3 months of training at the Rattachai Muay Thai gym in Phuket.
The total cost for 3 months of training there is 25,000 baht ($700), which is a 2000 baht savings from paying monthly. This rate includes 2x per day training with champion trainers.
The $100 (approximately 3500 baht) you pay now, which will give you access to all the products you see above, will count towards that total.
Just pay the remaining 21,500 baht to the Rattachai gym management when you arrive.
Once you process payment, simply send your arrival date to firstname.lastname@example.org and we'll notify the gym management so they'll be expecting you.
You will also receive a receipt upon payment, which you can show to the Rattachai staff when you arrive.