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A revolutionary new bag has been invented to solve the age-old problem of where to keep your valuables while at the beach.
The special hold-all has been created with a cord running through the zip which can be attached to a deck chair, sun lounger or seaside umbrella.
The only way the zip and cord can be untied is by tapping in a personalised combination code, similar to that found on a padlock or briefcase.
The bag also has a high-tech alarm system so that if it someone attempts to move it from where it is left, a piercing alarm will ring out and alert the owner to the thief.
The clever device, dubbed the Clam Bag, is currently funding on crowd-sourcing website Kickstarter.