S=18-Month Planner ,M=Undated Planner. 18-Month Monthly and Weekly Planner (Jan 2026 - Jun 2027): A4 size with durable monthly tabs for instant navigation. Two-page monthly spreads with holidays weekly spreads offer ample lined space for daily planning, appointments, and to-do lists. Features 100gsm thick paper for smooth, bleed-resistant writing. Premium hardcover with book-style binding lies flat for easy use. Includes elastic closure and dotted pages for notes. Elegant design suits professionals, students, and anyone seeking organized planning. Weight: 1.65 pounds.