This is a great product and very well priced my daughter found them comfortable easy to wear and to use.
Would consider an alternative
Thank you for your feedback. We are sorry to hear that you found some issues with our snorkeling kit. Here is the link where you can find alternative sets: https://www.decathlon.co.uk/C-313410-snorkeling-masks . You can also create your own kit thanks to our large selection of fins and masks.
Please return your current set to your local store or use online procedure for full refund or exchange.
Once again apologies for any inconvenience caused.