Window curtain clips Function: Hookstyle clips designed for hanging Christmas lights, party lights, LED light strings, photos, copper wire, patio lights, lanterns, tents and similar lightweight items. Key benefits: Provide a quick, nondestructive way to suspend decorations and lighting from window frames, curtain rails, or thin edges. Keep items neatly aligned and stable without drilling or adhesives. Compatibility and performance: Works with a wide range of lightweight light strings and wires; installs and removes quickly for seasonal or temporary displays. Portable crib mattress Function: Compact mattress panels that can be hooked together to extend the overall length. Key benefits: Allows flexible sleep surface length by combining units; convenient for travel, storage, or adapting to different crib/toddler bed setups. Compatibility and performance: Designed to interlock via hooks so multiple pieces form a continuous surface. Curtain tieback hooks (includes hoop) Function: Tieback hooks intended for use with the ring of a Romanstyle curtain circle. Important note: These tieback hooks are not designed to attach directly to a curtain pole; they attach via the included hoop. Key benefits: Offer a secure, tidy way to hold curtains open when used with compatible Romanstyle rings; hoop is included for immediate use. Metal curtain hooks Function: Small metal hooks for hanging or securing curtains and lightweight drapery accessories. Key benefits: Portable and compact design makes them easy to carry, store, and install in multiple locations; suitable for travel or temporary setups. Material: Metal construction for basic durability and repeated use. Practical use scenarios Holiday lighting on windows: Use the window curtain clips to hang LED light strings and lanterns along a window frame without nails or tape; clips keep lights evenly spaced and easy to remove after the season. Custom sleep configuration for travel or transitioning beds: Combine two portable crib mattress panels by hooking them together to create a longer mattress surface when needed, then separate for storage or transport. Romanstyle curtain management: Install the included hoop and attach the curtain tieback hooks to the Roman circle ring to hold curtains neatly open without modifying the curtain pole. What this set solves Eliminates the need for permanent fasteners or tools for temporary hanging and tieback solutions. Adds flexibility by enabling modular mattress length and portable curtain hardware. Saves time with quick installation and removal for seasonal, travel, or multiroom use. Contents and compatibility reminders Includes curtain tieback hooks plus the hoop required for use with Roman circle rings. Metal curtain hooks are portable and compact. Window curtain clips are intended for lightweight strings, lights, photos, and similar items. Portable crib mattress pieces hook together to extend length. If you need to know specific dimensions, weight capacity, or material grade for a particular application, please check the product specifications or contact the seller to confirm compatibility with your fixtures and fabrics.