Added in version 1.5, Fleur now supports Products displaying price on enquiry. This is for when you don't want to publicy display the price for a product, so instead of an "add to cart" button your customers will see a "Price on Enquiry" button that links them through to your contact form.
To use this, you must first enable it in the Fleur theme. You can do this by going into the Fleur theme settings and toggling the slider located in General -> Products -> Enable Price Enquiry button.
Then, for all the products you wish to be 'Price on Enquiry' only, add the product tag “enquire” to them in the Product Editing screen.