Cremones. window handles. hinges for inward opening double casement windows, bolts, stay arms, and additional locks are just some of the components that are part of the FUTURA tilt and turn range, designed to make it safer. more appealing. higher performing and tamper-proof. This means that the standard version can be installed at any time using a window handle for example, instead of the traditional or tamper-proof cremone and a cremone with key if added window security is required. These variations are possible by simply varying the optionals and not the dedicated product.