We would be happy to help with any special requests or questions you may have, feel free to contact us :) The dimensions shown in the photo are for a bracket with a 30mm hole diameter. For windows wider than 2 meters where 3 brackets are used, please make sure the room is wide enough to slide the rod through all brackets. If there isn't enough space to insert the rod, feel free to message me I can make the middle bracket with an open top to allow easy installation. Installation Steps: -Drill a hole in the wall using an 8mm drill bit, then insert the wall plug (dowel). -Drive the hanger bolt into the wall using a Torx T15 screwdriver bit. -Place the bracket onto the bolt & twist it by hand until it is securely tightened. -To avoid scratching the wall while tightening the bracket, it is recommended to apply masking tape around the bolt area before installation. -The bracket is designed to be used with a Hanger Bolt M6x80, which is included in the package. Handmade wall hooks made from solid wood Rustic design for a natural aesthetic Easy installation & wall mounting Suitable for various curtain rods & types of curtains Sturdy & durable for long-lasting use Dimensions for 30mm version: [2.5cm x 6.6cm x 10.5cm] Hole : [3cm] Solid Oak Curtain Rod Brackets - Handmade Wooden Wall Mount Minimalist Scandinavian Hardware Custom Size Available