Sub-Zero Boomers are Roundwound Cryogenically Treated Nickel-Plated Steel Strings. This basically means they are Boomers that have been enhanced with the DCT cryogenic freezing process.
The strings treated in a computerised system with liquid nitrogen, taking them down to a temperature of minus 300 degrees Fahrenheit, and then gradually restoring them to room temperature. This treatment improves the dimensional stability of the strings, keeping them in tune, while increasing resistance to corrosion.
Re: Delivery. All orders placed on weekdays before 3:45pm will be despatched that same day. All of our delivery options can be found at checkout or on our delivery page.
Re: Returns. We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, please contact us at firstname.lastname@example.org.
For further information visit our Returns & refunds page.