Arctic Buttlerfly SL700 free with magazine subscription

If you have several camera lenses and change them constantly on the dlsr body, you will not escape from having some ducts in your sensor or mirror. If you can't blow them away, you might need to send them back to professional cleaning service. I know VisibleDust 1 year back as it was mentioned in some forum, but have not bought their solution as it is expensive. Arctic Butterfly SL700 cost about £50 retail price, but it is free when subscribe to Pratical Photography for 1 year for £45. What a steal!

Use evoucher "GMags£5off" to further reduce the price (Orders must be over £10, not available with direct debit orders). So effectively you save £2 for 1 off subscription at £43.